diff --git a/.flake8 b/.flake8
index a6f2d52fee22..0833e9852c8f 100644
--- a/.flake8
+++ b/.flake8
@@ -1,5 +1,5 @@
 [flake8]
-ignore = E203, E501, E731, E741, W503, W605, E722
+ignore = E203, E402, E501, E731, E741, W503, W605, E722
 max-line-length = 119
 
 # E402: module level import not at top of file
diff --git a/model_zoo/gpt-3/projects/gpt/benchmark.py b/model_zoo/gpt-3/projects/gpt/benchmark.py
index b8e0c2862cb2..9d13d781dacf 100644
--- a/model_zoo/gpt-3/projects/gpt/benchmark.py
+++ b/model_zoo/gpt-3/projects/gpt/benchmark.py
@@ -13,13 +13,10 @@
 # limitations under the License.
 
 import argparse
-import os
 import time
 
 import numpy as np
-import paddle
 import paddle.distributed.fleet as fleet
-import ppfleetx_ops
 from ppfleetx.core.engine.inference_engine import InferenceEngine
 
 
diff --git a/model_zoo/gpt-3/projects/gpt/inference.py b/model_zoo/gpt-3/projects/gpt/inference.py
index 3178002b4449..f0f611925967 100644
--- a/model_zoo/gpt-3/projects/gpt/inference.py
+++ b/model_zoo/gpt-3/projects/gpt/inference.py
@@ -15,15 +15,10 @@
 from __future__ import absolute_import, division, print_function
 
 import argparse
-import os
-import time
 
-import numpy as np
-import paddle
 import paddle.distributed.fleet as fleet
-import ppfleetx_ops
 from ppfleetx.core.engine.inference_engine import InferenceEngine
-from ppfleetx.data import build_dataloader, tokenizers
+from ppfleetx.data import tokenizers
 
 
 def parse_args():
diff --git a/model_zoo/gpt-3/tasks/gpt/generation.py b/model_zoo/gpt-3/tasks/gpt/generation.py
index 13b3f82280b0..0b759621a834 100644
--- a/model_zoo/gpt-3/tasks/gpt/generation.py
+++ b/model_zoo/gpt-3/tasks/gpt/generation.py
@@ -12,18 +12,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import argparse
-import math
 import os
-import random
 import sys
-import time
 
-import numpy as np
 import paddle
 import paddle.distributed as dist
-import yaml
-from paddle.distributed import fleet
 
 __dir__ = os.path.dirname(os.path.abspath(__file__))
 sys.path.append(os.path.abspath(os.path.join(__dir__, "../../")))
diff --git a/model_zoo/gpt-3/tasks/gpt/inference.py b/model_zoo/gpt-3/tasks/gpt/inference.py
index 10f5c290a3ab..2e93fa160440 100644
--- a/model_zoo/gpt-3/tasks/gpt/inference.py
+++ b/model_zoo/gpt-3/tasks/gpt/inference.py
@@ -18,17 +18,15 @@
 import sys
 
 import paddle.distributed as dist
-from paddle.distributed import fleet
 
 __dir__ = os.path.dirname(os.path.abspath(__file__))
 sys.path.append(os.path.abspath(os.path.join(__dir__, "../../")))
 
 from ppfleetx.core import EagerEngine
-from ppfleetx.data import build_dataloader, tokenizers
+from ppfleetx.data import tokenizers
 from ppfleetx.distributed.apis import env
 from ppfleetx.models import build_module
 from ppfleetx.utils import config
-from ppfleetx.utils.log import logger
 
 if __name__ == "__main__":
     args = config.parse_args()
diff --git a/model_zoo/gpt-3/tools/auto.py b/model_zoo/gpt-3/tools/auto.py
index 5fc52727f791..f5d45978b66b 100644
--- a/model_zoo/gpt-3/tools/auto.py
+++ b/model_zoo/gpt-3/tools/auto.py
@@ -14,13 +14,9 @@
 
 from __future__ import absolute_import, division, print_function
 
-import copy
 import os
-import random
 import sys
 
-import numpy as np
-import paddle
 import paddle.distributed as dist
 from paddle.distributed import fleet
 
@@ -31,7 +27,6 @@
 from ppfleetx.data import build_auto_dataset
 from ppfleetx.models import build_module
 from ppfleetx.utils import config
-from ppfleetx.utils.log import logger
 
 # init_logger()
 
diff --git a/model_zoo/gpt-3/tools/auto_export.py b/model_zoo/gpt-3/tools/auto_export.py
index a6b5624e77f4..e35e73bf6213 100644
--- a/model_zoo/gpt-3/tools/auto_export.py
+++ b/model_zoo/gpt-3/tools/auto_export.py
@@ -14,14 +14,9 @@
 
 from __future__ import absolute_import, division, print_function
 
-import copy
 import os
-import random
 import sys
 
-import numpy as np
-import paddle
-
 __dir__ = os.path.dirname(os.path.abspath(__file__))
 sys.path.append(os.path.abspath(os.path.join(__dir__, "../")))
 
diff --git a/model_zoo/gpt-3/tools/eval.py b/model_zoo/gpt-3/tools/eval.py
index a34a28023e77..1cd1b0c5262b 100644
--- a/model_zoo/gpt-3/tools/eval.py
+++ b/model_zoo/gpt-3/tools/eval.py
@@ -18,7 +18,6 @@
 import sys
 
 import paddle.distributed as dist
-from paddle.distributed import fleet
 
 __dir__ = os.path.dirname(os.path.abspath(__file__))
 sys.path.append(os.path.abspath(os.path.join(__dir__, "../")))
diff --git a/model_zoo/gpt-3/tools/export.py b/model_zoo/gpt-3/tools/export.py
index ffa3ea2dbfdc..449ad3d55fee 100644
--- a/model_zoo/gpt-3/tools/export.py
+++ b/model_zoo/gpt-3/tools/export.py
@@ -18,7 +18,6 @@
 import sys
 
 import paddle.distributed as dist
-from paddle.distributed import fleet
 
 __dir__ = os.path.dirname(os.path.abspath(__file__))
 sys.path.append(os.path.abspath(os.path.join(__dir__, "../")))
diff --git a/model_zoo/gpt-3/tools/inference.py b/model_zoo/gpt-3/tools/inference.py
index 30d36ac87561..0df4c8c40ef5 100644
--- a/model_zoo/gpt-3/tools/inference.py
+++ b/model_zoo/gpt-3/tools/inference.py
@@ -18,7 +18,6 @@
 import sys
 
 import paddle.distributed as dist
-from paddle.distributed import fleet
 
 __dir__ = os.path.dirname(os.path.abspath(__file__))
 sys.path.append(os.path.abspath(os.path.join(__dir__, "../")))